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2answers
89 views

Restore a newer filegroup backup

So this is my set up. In our data warehouse we have mostly tables that are filled with data from a ETL-process. We do not take backup of these tables since we have an option to do a full reset using ...
0
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2answers
41 views

is it a good practice to ip block dev/test app servers from production database server? [closed]

I would like to do this as somewhat of a last line of defense as we will be replicating production to test regularly. Is this good practice?
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2answers
64 views

Can SQL Server Transactional Replication do this?

We have a production server and a reporting server, with transactional replication in place to move all inserts/updates/deletes from production to reporting. We're using SQL Server 2008 R2. We have ...
1
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2answers
330 views

Why do we have negative length for character maximum length for geography and varchar(max) data types?

Why do we have negative length for character maximum length for geography and varchar(max) data types? Character_Maximum_length = - 1
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2answers
73 views

Get a user's rank from an equation, and then store it in the table

I'm working on a project for my database class, and I have a table called "accounts". It looks like What I want to do is have a stored procedure where it calculates the new ranks for each account. ...
0
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1answer
90 views

What is the risk of doing a rebuild to my indexes in sql server 2012?

What is the risk of doing a rebuild to my indexes in SQL Server 2012? I have to do a REBUILD, but I don't know what are the risks . The server is running and a lot of information is going in and out. ...
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0answers
209 views

MySQL replication: most important config parameters on slave for performance on master server?

This query is almost the same as this question. But in this case, a configuration to make the master perform faster or just the same. Case We have a Master-Slave setup on a Mysql 5.0.77 - MariaDB ...
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2answers
188 views

How can delete an orphaned temporary table on Mysql Innodb?

I was issuing an Alter table statement and suddenly the server crashed, Now i can not run any alter table to that table because it shows me the error 1050 and it says that a table named #sql1504d ...
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2answers
60 views

To what extent can we monitor jobs/suspended queries as DBO

Short Background: I work for company A, at company A we have a DBA that should not be. When we are tasked with items for troubleshooting which require quick turn around, it generally takes quite a ...
0
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1answer
137 views

What is contained in the controlfile of oracle database?

As we all know that controlfile contains datafile locations and redo log locations along with their names.It also contains dbname,timestamp,checkpoint info,log sequence number,rman backup info.In ...
3
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1answer
133 views

How to directly query other user tables

I am trying to learn Oracle database and I am having difficulties on importing a backup file with impdp command. I googled deeply but couldn't find answers to my problems. What have I done until now ...
0
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1answer
49 views

Mysql JOIN with 25million rows

Recently I got stucked with a table where its grown to +25million and I have got a query that's doing a JOIN on it. The query take 2.5hours to execute even though I got Good 96GB RAM and RAID10 with ...
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1answer
360 views

I am upgrading from 11.1.0.7.0 to 11.2.0.3 with R12.1.3 while pre upgrade/catupgrd.sql erroring out ORA-00600

While upgrading from 11.1.0.7.0 to 11.2.0.3 with R12.1.3, during running the pre upgrade script catupgrd.sql, it is erroring out ORA-00600: internal error code, arguments: [qcisSetPlsqlCtx:tzi ...
1
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1answer
142 views

Incorrect unit allocation size. error comes when Tuning the Database

Here I am Using the SQL IDERA tool for checking the Index and performance of the Database, then i found below error, can any one tell what is it talking about. Incorrect unit allocation size. ...
0
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1answer
279 views

Database simulator [closed]

I've been studing theory of database, but I can't have a concrete image on terms of functionality. I want to be a DBA, I'm studing for it so I want to understand how a database works. Is there any ...
0
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0answers
27 views

SPExecuteSQL;1 keeps executing internally

Having a major issues with this procedure called SP_ExecuteSQL;1. It keeps executing internally in SQL Server 2000 with high utilization of CPU. When I pass its SPID in DBCC inputbuffer it shows as ...
1
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1answer
167 views

Delete back ups more than 2 weeks in sql server

I am not a DBA, I need to delete the USER_DATABASE backups older than 2 weeks. Is this below stmt work for this scenario? EXECUTE dbo.DatabaseBackup @Databases = 'USER_DATABASE', @Directory = ...
0
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1answer
64 views

Error on mongos server

Firstly,I am new to mongodb. when we executed the below command on mongos server. /usr/bin/mongos --configdb X.X.X.1:20001,X.X.X.2:20002,X.X.X.3:20003 --port 27017 --chunkSize 1 we are getting the ...
0
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1answer
454 views

Error when trying to add a shard set in Mongo db

I'm trying to add a shard set in mongos I got this error and . Kindly help. mongos>db.runCommand( { addshard : " firstset/ip_1:port_1,ip_2:port_2,ip_3:port_3" } ); { "ok" : 0, ...
0
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1answer
71 views

Can any one Explain me What is the Use of Cascading Replication in Postgresql?

What are the advantages of cascading replication in PostgreSQL. I have done Testing On this With three nodes. M1---->S1----->S2 What is the Use if My master(M1) goes Down(failover). Where the ...
2
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2answers
1k views

Multiple Instance with different service packs in SQL Server

I would like to install a Default instance with SQL Server 2008 R2 RTM and I want to install another named instance with SQL Server 2008 R2 SP2. Is this possible?
0
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1answer
164 views

Exadata RMAN vs. Non-Exadata RMAN - any differences?

Can you please let me know the differences, if any, in the architecture of the non-Exadata RMAN vs. that of the Exadata-RMAN from an SBT plugin perspective? Have you observed from your vast ...
1
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1answer
568 views

Copy Database from Production to Development

I need to copy database from production to development instance in SQL Server 2012 as I don't want to mess up the production server database. Can someone suggest how I can do this ?
0
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1answer
57 views

Index file - size changed

I realised today that my index file(which is about 250GB) is smaller than yesterday for about 7GB. Everything, I done in the meantime, was index rebuild. Is it possible that index rebuild is the ...
0
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1answer
117 views

Maintenance plans

I am an accidental dba..I did post a message a while ago about Index fragmentation and some of you suggested maintenance plan and others suggested custom Olla's scripts. I have downloaded his scripts ...
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3answers
642 views

index rebuild/reorganize frequency

I am a dba by accident. I am doing index rebuild/reorganize. I would love to use some scripts once I become comfortable doing these tasks. I did go through some of the forum pages regarding this ...
0
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0answers
38 views

Pulling all data modified in a month [duplicate]

i am required to WRITE A SCRIPT that pulls all the data that has been modified in last 30 days from a database. What approach do we need to follow.
0
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1answer
102 views

How to setup large database access/cache on LAMP environment? [closed]

My application is getting very slow I guess because of the ever growing database (30+ tables some with 50,000+ rows). Using CodeIgniter's model tier to call MySQL database, I optimized queries & ...
0
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0answers
15 views

SQL server - copying tables, constraints and indexes from one database server to another server [duplicate]

An accidental DBA, We have sql server 2012 on both of our payroll production server and development server. We have to copy few tables and indexes and constraints from the production database to the ...
0
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1answer
46 views

Who should own the staging database right

At my company we are re-assessing which developers will take on the deployment for xyz ticket. At the moment when a developer is done with his ticket, a deployment ticket is created and another ...
0
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1answer
58 views

How to do Mysql migration from 5.0 (320bit windows) to 5.6 (64 bit windows)?

I want migrate My Mysql 5.0 windows 32 bit to Mysql 5.6 Windows 64 bit? Please suggest me the best way to do migration, i have around 10gb of data present in Mysql 5.0.
2
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1answer
7k views

How to grant permissions for User defined type in Oracle

This is probably easy but i can't seem to figure it out. I created my user-defined type as CO_ADMIN. However, the application using the type runs using GS_USER database account. I have granted ...
0
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1answer
108 views

Can anyone recommend a beginner DBA course in London [closed]

My organisation is in need of a SQL Server DBA and as the companies only "SQL Guy" my boss has suggested me to take SQL Server DBA course. My general T-SQL knowledge is fairly good, I can write ...
0
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0answers
48 views

Restore data from MYSQL Bin log

I am trying to restore some data from mysql bin log file. But when it encounter some special characters, query gets break and I am not able to continue after that. Is there any way to handle special ...
1
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0answers
99 views

How many Maximum Number of database can be created in single instance of PostgreSQL? [closed]

How many Maximum Number of database can be created in single instance of PostgreSQL 9.x?
0
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1answer
43 views

Can PostgreSQL results include the query?

I run the following command to run 2 queries in a sql file. Could be 1, could be 50 queries. Depends on the deployment. psql -U <username> -h <servername> -d <databasename> -f ...
2
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3answers
197 views

Transaction log back up

Another accidental DBA question. We have a DB instance that host 10 databases. This DB server doesn't have any maintenance plan set up. I want to set up a decent maintenance plan that will do a full ...
2
votes
2answers
16k views

Reclaiming data file free space after deleting a large amount of data

I am an accidental DBA. We have a sql cluster that hosts 10 databases. Suddenly the size of one of the database increased drastically from 100GB to 250GB. When we checked the datafile, the size had ...
0
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0answers
37 views

Can it Possible to do Mysql Active - Active Replication between Redaht linux 6.4X and Ubuntu 12X?

I have small doubt regarding Mysql Active-Active Replication. Can it Possible to do Mysql Master-Master (Active-Active) replication in Mysql between Redhat Linux and Ubuntu? Thanks & regards, ...
0
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0answers
727 views

A issue on DB link between Postgres and Oracle?

I am trying to create a DB link between Oracle and PostgreSQL using OCI. CREATE DATABASE LINK oraedb CONNECT TO hr IDENTIFIED BY 'hr' USING oci '//127.0.0.1/xe'; CREATE DATABASE LINK When I ...
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1answer
249 views

Non- Logged operation [closed]

I want to run a non-logged operation with changing the recovery model of a SQL Server database. Is their any way to do this?
0
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1answer
975 views

lsnrctl: cannot execute binary file: Exec format error [closed]

When I type lsnrctl from my command prompt the below error message is displayed: oracle@Gaurav:~$ lsnrctl bash: /u01/app/oracle/product/12.1.0/dbhome_1/bin/lsnrctl: cannot execute binary file: Exec ...
2
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2answers
5k views

Free up disk space on sql server

Assuming I have a sql database server with disk space as follows: D Drive: 10GB (For the MDF file) E Drive: 10GB (For the LDF file) And I have only one database on the server with the following ...
0
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1answer
285 views

Select Into Regexp_replace doesn't write changes into newly generated table

I have been using this query in postgres 9.1 in order to remove '' from existing data. Below is a sample of the data before running regexp_replace. 6'' 6'' 6'' 20'' 12'' 18'' 20'' 8'' 10'' '' '' ...
1
vote
1answer
210 views

Difference between sql agent account logged in as NTLM and UPN?

Can someone please tell the difference between a sql agent account logged in as NTLM and UPN? What is the difference if the sql agent account is logged in as: domain\username and username@domain.com? ...
1
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1answer
445 views

cons of linked server providers not running in “allow in process” [closed]

what are the cons of having linked server providers not running in "allow in process"? SQL box crashed due to oracle provider crashing and it provider was running in "Allow in process", now have been ...
4
votes
1answer
318 views

The future of DBAs with ORM [closed]

I am an aspiring DBA (I'd say in ~3 years I would be ready to apply for a job) and I currently am a programmer. I relayed my future goals to a friend of mine who is part of an Agile SCRUM team in a ...
0
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2answers
314 views

Restoring Oracle DB using RMAN

I am a application developer doing DBA work. I have to restore an oracle database on our test server. The databases are backed up using RMAN and the last db restore that was done on this server was in ...
4
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2answers
31k views

How to Create users in sql server for accessing only one database using Management Studio [closed]

How to Create users in sql server 2008 R2 for accessing only one database using Management Studio. regards, salman
0
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1answer
141 views

Timestamp with time zone

Please can you explain the meaning of this sentence! Two TIMESTAMP WITH TIME ZONE values are considered identical if they represent the same instance in UTC, regardless of the TIME ZONE offsets ...